Biggles is on to it! Most major brand TV's like Samsung, Sony, LG, Panasonic will have what is called a "Dual-Tuner" feature which means you can hook up a satellite dish or UHF aerial (or even both if you live in a coverage area) without the need of the box.

The only thing to note from your post, is that a Satellite Dish will not work with a UHF only TV, good rule of thumb is if the TV or device has a twisty connection and not a simple aerial plug in then it will work with your dish